chore(package): update @types/swagger-ui-express to version 4.1.2

Closes #124

Author: greenkeeper[bot]

package.json

@@ -38,7 +38,7 @@
     "@types/passport": "1.0.0",
     "@types/passport-jwt": "^3.0.1",
     "@types/supertest": "^2.0.6",
-    "@types/swagger-ui-express": "^3.0.0",
+    "@types/swagger-ui-express": "^4.1.2",
     "@types/typescript": "^2.0.0",
     "babel-cli": "^6.26.0",
     "chai": "^4.2.0",